It was another jaw-dropping performance from Brad Isbister last night. So to speak.

With a pair of goals in the Islanders’ 3-2 victory against the Rangers at the Garden, Isbister has erupted for four goals in five games since returning last week from a fractured jaw.

After sitting out 15 games since a puck smashed his jaw in a game against the Capitals on December 12, the 23-year old forward has resumed his could-have-been All-Star season in style. With 16 goals, he’s tied for second on the club with Mark Parrish, one behind Mariusz Czerkawski.

But considering the competition and location last night, this was the biggest step of his comeback.

“Against the Rangers and in New York City, it feels good,” said Isbister, who continues to wear a shield to protect his jaw on the ice. “Hopefully an emotional win can get us going.”

Veteran forward Claude Lapointe said of Isbister: “No doubt, he’ll be a super star and he’ll be one of our franchise players.”

Isbister’s first goal last night was a quick wrist shot from the high slot on a power play to give the Isles a 2-1 lead at 7:50 of the third period.

Isbister followed that at 17:09 with a backhand flick off a nice feed by Czerkawski. He also assisted on Czerkawski’s goal in the first period.

“My timing was off the first couple of games, but it’s come back and I’m in the flow of things,” said Isbister.

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Isles’ twin tower D combination of Zdeno Chara (6-foot-9) and Eric (6-foot-6) played a key role in shutting down, and frustrating, Theo Fleury, who came in tied for second in league with 28 goals. Last night, Fleury was held scoreless on five shots in 28:01. At one point, Fleury tried to go after Chara, but was held back by officials.

“Some guys don’t like to be hit,” said Chara, who began getting under Fleury’s skin last season.